International Bottom Trawl Survey of the North Sea 2020 R/V G.O. Sars
The map below shows the northern region of the North Sea with ICES IBTS squares. The coloured squares are the ones that were planned to be sampled by the R/V G.O. Sars during the 2020 IBTS survey.
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Cruise tracks from the position log with points indicating start positions for different sampling gear. The points are jittered slightly for better visual representation:
## Warning: Removed 77 rows containing missing values (geom_point).
15 bottom trawl hauls were taken during the survey. The trawl hauls covered a total distance of 58.9 km (31.8 nmi).
The sampling stations were located in areas with bottom depths from 95.9 m to 218.9 m, and the fishing depth varied from 96.2 m to 219 m.
A total of 115 species were registered in Sea2Data during the survey.
The following figures shows the length distribution of individuals sampled during the survey.
## [1] "/Users/eriko/Documents/GitHub/cruisetools/IBTS/IBTS_CruiseNotebook"
34 CTD casts were done during the survey, covering a total depth of 2.7 km.
## Density in the water column
## Light in the water column